INFO: task hung in addrconf_dad

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-6.1	INFO: task hung in addrconf_dad_work (2)				67	134d	340d	0/3	auto-obsoleted due to no activity on 2024/11/26 11:15
android-414	INFO: task hung in addrconf_dad_work				1	2061d	2061d	0/1	auto-closed as invalid on 2019/10/25 08:37
upstream	INFO: task hung in addrconf_dad_work (5) net	C	done		1381	13h15m	184d	0/28	upstream: reported C repro on 2024/07/29 15:23
android-49	INFO: task hung in addrconf_dad_work				1	2348d	2348d	0/3	auto-closed as invalid on 2019/02/22 20:09
upstream	INFO: task hung in addrconf_dad_work (2) net	C	unreliable	error	107	434d	788d	0/28	closed as invalid on 2023/11/23 17:05
linux-6.1	INFO: task hung in addrconf_dad_work				2	623d	653d	0/3	auto-obsoleted due to no activity on 2023/08/26 05:16
upstream	INFO: task hung in addrconf_dad_work net	C	inconclusive	inconclusive	468	1134d	2174d	0/28	closed as invalid on 2022/02/08 10:54
linux-5.15	INFO: task hung in addrconf_dad_work origin:upstream	syz			129	82d	375d	0/3	upstream: reported syz repro on 2024/01/20 08:09
upstream	INFO: task hung in addrconf_dad_work (3) net	C			185	323d	365d	25/28	fixed on 2024/03/25 23:45
linux-4.19	INFO: task hung in addrconf_dad_work				1	1983d	1983d	0/1	auto-closed as invalid on 2019/12/24 18:36
linux-4.19	INFO: task hung in addrconf_dad_work (2)	C		error	72	701d	1774d	0/1	upstream: reported C repro on 2020/03/22 17:39
linux-4.14	INFO: task hung in addrconf_dad_work	C		inconclusive	1	949d	1555d	0/1	upstream: reported C repro on 2020/10/27 17:48
upstream	INFO: task hung in addrconf_dad_work (4) net				2632	204d	255d	26/28	fixed on 2024/07/09 19:14

INFO: task kworker/0:1:14 blocked for more than 147 seconds. Not tainted 6.1.123-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:24672 pid:14 ppid:2 flags:0x00004000 Workqueue: ipv6_addrconf addrconf_dad_work Call Trace: <TASK> context_switch kernel/sched/core.c:5241 [inline] __schedule+0x143f/0x4570 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747 addrconf_dad_work+0xcc/0x16b0 net/ipv6/addrconf.c:4134 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK> INFO: task kworker/1:2:130 blocked for more than 148 seconds. Not tainted 6.1.123-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:23912 pid:130 ppid:2 flags:0x00004000 Workqueue: events switchdev_deferred_process_work Call Trace: <TASK> context_switch kernel/sched/core.c:5241 [inline] __schedule+0x143f/0x4570 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747 switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:104 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK> INFO: task dhcpcd:3917 blocked for more than 152 seconds. Not tainted 6.1.123-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:24392 pid:3917 ppid:1 flags:0x00004002 Call Trace: <TASK> context_switch kernel/sched/core.c:5241 [inline] __schedule+0x143f/0x4570 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747 __netlink_dump_start+0x12e/0x6c0 net/netlink/af_netlink.c:2287 netlink_dump_start include/linux/netlink.h:269 [inline] rtnetlink_rcv_msg+0xd4c/0xff0 net/core/rtnetlink.c:6106 netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2493 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline] netlink_unicast+0x7d8/0x970 net/netlink/af_netlink.c:1337 netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1859 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x5a5/0x8f0 net/socket.c:2519 ___sys_sendmsg net/socket.c:2573 [inline] __sys_sendmsg+0x2a9/0x390 net/socket.c:2602 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fbb50cfaa4b RSP: 002b:00007fff4b039438 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000055861e6e577c RCX: 00007fbb50cfaa4b RDX: 0000000000000000 RSI: 00007fff4b039480 RDI: 000000000000000f RBP: 00007fff4b04da28 R08: 00007fff4b03d688 R09: 00007fff4b03d688 R10: 000055861e70315e R11: 0000000000000246 R12: 000000000000000f R13: 00007fff4b03d688 R14: 00007fff4b03d668 R15: 00007fff4b03d868 </TASK> INFO: task kworker/1:9:4338 blocked for more than 153 seconds. Not tainted 6.1.123-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:9 state:D stack:22944 pid:4338 ppid:2 flags:0x00004000 Workqueue: ipv6_addrconf addrconf_dad_work Call Trace: <TASK> context_switch kernel/sched/core.c:5241 [inline] __schedule+0x143f/0x4570 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747 addrconf_dad_work+0xcc/0x16b0 net/ipv6/addrconf.c:4134 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK> INFO: task kworker/u4:23:4448 blocked for more than 154 seconds. Not tainted 6.1.123-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:23 state:D stack:21368 pid:4448 ppid:2 flags:0x00004000 Workqueue: events_unbound linkwatch_event Call Trace: <TASK> context_switch kernel/sched/core.c:5241 [inline] __schedule+0x143f/0x4570 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747 linkwatch_event+0xa/0x50 net/core/link_watch.c:263 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK> INFO: task syz-executor:5603 blocked for more than 154 seconds. Not tainted 6.1.123-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:20776 pid:5603 ppid:1 flags:0x00004004 Call Trace: <TASK> context_switch kernel/sched/core.c:5241 [inline] __schedule+0x143f/0x4570 kernel/sched/core.c:6558 schedule+0xbf/0x180 kernel/sched/core.c:6634 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747 nl80211_pre_doit+0x5b/0x8a0 net/wireless/nl80211.c:16230 genl_family_rcv_msg_doit net/netlink/genetlink.c:751 [inline] genl_family_rcv_msg net/netlink/genetlink.c:833 [inline] genl_rcv_msg+0xbc1/0xf70 net/netlink/genetlink.c:850

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2025/01/04 11:56	linux-6.1.y	7dc732d24ff7	f3558dbf	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan-perf	INFO: task hung in addrconf_dad_work

Crashes (1):

Assets (help?)